The conversion of phase to amplitude fluctuations of a light beam by an optical cavity


Autoria(s): VILLAR, Alessandro S.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/04/2012

18/04/2012

2008

Resumo

Very low intensity and phase fluctuations are present in a bright light field such as a laser beam. These subtle quantum fluctuations may be used to encode quantum information. Although intensity is easily measured with common photodetectors, accessing the phase information requires interference experiments. We introduce one such technique, the rotation of the noise ellipse of light, which employs an optical cavity to achieve the conversion of phase to intensity fluctuations. We describe the quantum noise of light and how it can be manipulated by employing an optical resonance technique and compare it to similar techniques, such as Pound - Drever - Hall laser stabilization and homodyne detection. (c) 2008 American Association of Physics Teachers.

Identificador

AMERICAN JOURNAL OF PHYSICS, v.76, n.10, p.922-929, 2008

0002-9505

http://producao.usp.br/handle/BDPI/16380

10.1119/1.2937903

http://dx.doi.org/10.1119/1.2937903

Idioma(s)

eng

Publicador

AMER ASSOC PHYSICS TEACHERS AMER INST PHYSICS

Relação

American Journal of Physics

Direitos

openAccess

Copyright AMER ASSOC PHYSICS TEACHERS AMER INST PHYSICS

Palavras-Chave #FREQUENCY STABILIZATION #SQUEEZED STATES #QUANTUM #ENTANGLEMENT #OSCILLATIONS #Education, Scientific Disciplines #Physics, Multidisciplinary
Tipo

article

original article

publishedVersion